01/2016 – present Smart Inventory Management System team; Worked with data scientists to build a forecasting and order recommendation system for Walmart business teams to make inbound purchase orders for Walmart.com. Designed and implemented an order management system to place orders; Built a data pipeline system to run large amount data refresh to support entire Walmart supply chain tech team.

08/2013 - 01/2016: Skype Media Reliability and Tools team. Utilize Skype call quality data to help tenants figure out root causes of Skype call quality issues.03/2012 - 08/2013: Windows Security and Identity Team. Works on integration of two set of cryptography APIs, and credential roaming for Windows 8 & 8.1

Worked at Simple Storage Service (S3) team in Amazon Web Service (AWS); Built a real-time monitoring system to identify access failures, and helped S3 on-call to solve problems; Established a webpage to monitor failures of each customer; Package has been deployed to production

• Performed maintenance work for a 30-node Linux computer cluster (Oct. 2008 - Jul. 2010)Worked as cluster administrator; Wrote scripts to back up data; Compiled and Installed software for scientific computation; Offered technical support for cluster users.• Performed numerical simulation on hydrogen storage (Dec. 2007-Aug. 2009)Collaborated with Honda Research USA; Rewrote and recompiled part of GAUSSIAN’s source code to improve data accuracy and redefine simulation model; Wrote C code for Fast Fourier Transform (FFT) for data processing; Explored hydrogen storage on organic materials

Worked at Raman Spectroscopy Lab of Department of Physics, Peking University